I noticed Amazon modifying its payment flow. Previously the flow needed the user to navigate through two pages after clicking ‘Buy now’

But now, if your address is preselected Amazon shows a slider on the same page where only CVV needs to be added. Post this it shows an option to ‘Slide to Place order’.

The final steps obviously involves entering an otp which is not presently on the same page.

But overall it feels like a single page flow and very intuitive. 

The only thing that felt odd was the term ‘Apply’ next to CVV. Sounds like a coupon field, while it’s not. 

Interestingly this flow was first noticed on Swiggy Pop.